5 xÔz et zot sont deux angles adjacents tels que xOz = 15° et xOt = 90°. B est un
point de [Oz). P et C sont les symétriques
respectifs de B par rapport à (Ot) et (Ox).
Montrer que les points P, O et C sont alignés.​

Item 1 which question could the expression 1000n answer? let n = the number of gallons of gas used. how many miles per gallon did the car get driving 1000 miles? let n = the number of grams of food needed for each dog. how many grams of food are needed to feed 1000 dogs? let n = the number of people at the show. how many empty seats were there at the show if there are 1000 seats at the theater? let n = the number of seats at the theater. how many empty seats will there by if 1000 people come to the show?